Heat retainer for engines



May 1927' J. B. KITCH HEAT RETAINER. FOR ENGINES Filed Jan. 9, 1925Patented May 17, 1927.

unrrs stares JOSEPH B. KITCH,

OF ELY, NEVADA.

HEAT RETAINER non nneiuns.

Application filed January 9, 1925. Serial No. 1,466.

My invention relates to an improvement in heat retainers for all kindsof gasoline engines, or any internal combustion engine.

The object is to preheat the gasoline and maintain the temperaturethereof for the initial supply to the carburetor in cold Weather.

The invention really consists of a thermos bottle adapted to be filledwith gasoline from the tank, means for supplying heat to the gasoline onits Way thereto, and means for retaining this initial supply of gasolinein the thermos-bottle until it is required for starting the engine.

In the accompanying drawings:

Fig. 1 is a side elevation showing the invention as applied to anengine;

Fig. 2 is an enlarged sectional View through the heat retainer; and

Figs. 3, 4, 5 and 6 are views of the disks forming the control valve.

A, represents a thermos-bottle having the usual vacuum space 1, and acork 2 for closing the same.

A fuel line pipe 4; leads from the fuel tank through the cork well intothe bottle, discharging near the bottom thereof.

Another fuel line pipe 5 extends through the cork to the carburetor. Thepipe from the tank is adapted to be coiled around the exhaust pipe ofthe engine to receive heat therefrom, so as to raise the temperature ofthe gasoline slightly before entering the thermos-bottle. A valve isformed at the mouth of the bottle just outside the cork. This consistsof two stationary disks 6 and 7, to which the adjacent ends of the pipelines are attached.

A rotary disk 8 is fitted between these two stationary disks 6 and 7.The stud-bolt 9 extends through the center of these disks, and a spring10 thereon creates the required amount of friction between the disks.The disk 8 has rotary movement limited by the pins 11 extending into theslots 12, and this disk has two ports 13 and 14 in position to registerwith the adjacent ends of the pipelines 4: and 5 when the thermos-bottleis to be filled, or its contents is to be used. This valve is also usedfor closing these pipes when it is turned to the position shown in Fig.6.

In operation, cold fuel must be drawn from the carburetor before heatedfuel enters same, when the engine is cold and is to be started. Then thevalve from the thermosbottle is opened, and the preheated fuel thereinis sucked through the pipe line 5 into the carburetor, thus causing theengine to start right up freely with fuel that is slightly heated ratherthan cold fuel.

It is understood, of course, that the valve disk 8 is closed when theengine is not in use, in order to keep the heated fuel in thethermos-bottle to be used in starting when the engine is cold.

This invention insures proper vaporization of fuel when the engine is inuse, and by closing the valve disk 8 to shut the heated fuel in thethermos-bottle, which will be kept warm enough to vaporize properly fora long period of time when the engine is otherwise cold. This idea willapply to all internal combustion engines.

I claim:

1. The combination with an internal combustion engine, and asource offuel supply comnumicating therewith, of means for heating the fuelpassing to the engine, and heat insulated means for receiving andretaining the heated fuel when the engine has stopped for use inassisting the starting ofthe engme.

2. The combination with an internal combustion engine, and a source offuel supply communicating therewith, of means for heating the fuelpassing to the engine, and vacuum insulated means for receiving theheated fuel and retaining the same when the engine has stopped for usein starting the engine when the same has cooled.

3. The combination with an internal combustion engine, and a source offuel supply communicating therewith, of means for heating the fuelpassing to the engine, and a vacuum insulated chamber interposed withinsaid communication for receiving the heated fuel and retaining the samein its heated condition after the engine has stopped for use in startingthe engine when the same has cooled.

4:. The combination with an internal combustion engine, and a source offuel supply communicating therewith, of means connected with the enginewhile the same is running forheating the fuel passing thereto, and avacuum insulated chamber connected with said communication for receivingthe heated fuel and retaining the same in its heated condition after theengine has stopped for use in starting the engine When the same hascooled.

5. The combination with an internal coinbustlon engine, and a main fuelfeed line communicating therewith, of means interposed 1n the mean feedline for heat ng the fuel passing to the engine, and heat insulatedmeans interposed in the main feed line for receiving and retaining theheated fuel when the engine has stopped for use in assisting thestarting of the engine.

In testimony whereof I aifix my signature.

JOSEPH B. KITCI-I.

